PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 12717030-6 2003 The structure, chemical shifts, and spin-spin coupling constants all indicate that, of the four lysines in the N-terminal domain of IIA(Glc), only Lys 5 and Lys 7 in the amphipathic helical region interact with DHPG. dhpg 211-215 colicin Ia immunity protein Escherichia coli 132-135